Dust-proof file for prints.



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H1B ATTORNEY r i No. 895,039.

e STATES PATEJ I FICETl I i l I 7 cuantas Po'r'rngor D'oNoRA, PnxxsYLvaNIA. v I 3 i DUST-'PROOF FILE non tennvzrs.

To all whom it may concern: V v `Beit known that I, CHARLES PoTrER, a citizeny of the United States, residing vat Donora, inthe county of Washington and 5 State of Pennsylvania, have invented certain new and useful Im rovements in DustProof Files for Prints, o which the following is a specification. i i

My invention relates to filing cases and particularly to devices for ling prints, drawmgs, and the like.

7lhe object of my invention is to provide a filing case for prints which will contain divisions or compartments separated from each other and easily accessible. 4 A further ob'ect'is to provide a device which will he compact and dust proof.

A still further object of m invention is to provide a filing device whic may be added to as desired.

Other objects will ap ear hereinafter from the description of my device.

In the accompanying drawings which form part of this specification: Figure 1 is a perspective view of my assembled device. Fig.

2 1s a cross sectional view, somewhat diagrammatical to illustrate the course or direc,

.n tion of the fabric upon the frames.

Fi0'.3isa lan vleW showmg how the three sizes of rames lntermesh. Fig. 4 1s a fragmentary vieur illustrating a convenient means for sup- 1, porting the opened files. Referring again to the drawings for a detailed descriptlon of my invention: A base 1 has superimposed thereon a series of frames 2, 2b 2, Which are all practically similar with the exception that the frames 2" are provided With end pieces 2b to'allow the adjacent frames 2a to mesh therein as shown in Fig. 1, and the frames 2 are provided with end pieces 2c to allow the adjacent end pieces 2bof the frames 2b to mesh therewith,

\ thus providing dust proof joints vat the ends \-of theseries of frames. A strip of cloth or other flexible fabric 3, preferably the exact Width of the opening between the ends of the frames so as to exclude dust, is passed, as shown-diagrammatically, in Fig. 2, under, u and over each side piece of each superimposed frame, one end of said fabric being attached to the base at 3a and the other end thereof being attached to the u ermost frame at 3b. Especial attention is caillid to the manner of Winding this fabric 3 upon the frames. By

looking at Fig. 3 it will be seen that the fabric starting from the base 1 passes under, up and Specification of Letters Patent. 'apinication mea nay 25, 190s. .sean No. 434,807.'

Patented Aug. 4, 190s.

over the left hand side piece of the frame 2*,

thence across the frame and under, up and over the right hand side piece of the same frame, thence acrossagain to the left hand side Where it passes under, up and over the side piece of the frame next above and pro- I ceeds in like manner with each successive frame, so that each side piece, both right and left hand side, of each frame is embraced by said fabric. It will be therefore seen that the four frames shown in Fig. 2 provide seven files or compartments, that is, one less than twice as many compartments as there are frames, each compartment separated from the adjacent one by the single thickness of the fabric, and each accessible immediately by raising the appropriate end of the frame, as shown in dotted outline in said Fig. 2.k

The frames are shown slightly separated .for convenience in illustrating the course of the fabric, but in practice they rest upon one another forming dust proof joints at the sides, the ends being made dust proof by the end ieces 2b and 2 as described above. The flexibility and stretch of the fabric allow enough sag to permit of the reception of the print-s or other obiects 4 and the capacity of each compartment is not even limited by the thickness of the frames.

Convenient screw eyes 5 are inserted in the side pieces of the frames for convenience in lifting and a chain 6 passing over a suspended pulley 7 may be provided with a hook 8 engaging said screw eyes 5. A. .handle 9 attached to said chain may be provided with a. hook-or spur 10 for engaging a loop insaid chain 6 to hold the lifted end of the fix. in suspension when desired.

For convenience in opening the file I prefer to provide rods 11 which pass through the projecting ends. of the frames 2a and project as shown in Figs. 1 and 3 and engage with suitable-. notches 12 in the end pieces 2" and 2 which together serve as hlnges for the several frames when it is desired to gain access to the compartments thereof.

Having thus fully described my invention, I claim as new and desire to protect by Letters Patent of the United Statesz- 1. In a filing device, the combination with a base, of a pile of superimposed frames, and a continuous fabric passing from the base successively under,-up, and over the opposite sides of each frame to the top of said pile.

2. In a dust proof filing device, the combination of a plurality of superimposed frames,

2 f y y' 'Y 'l 895,039

and asingle strip of fabric interlaced through successive frames in such manner as to embrace-both sides of each frame, substantially as described.'

f 5' 3. In a dust proof filing device, the combination with a base, of a plurality of superimposed frames, end ieces on some of said frames, ay single continuous fabric interlaeing through successive frames and embracing L 10 both sides of each frame to form comparti ments whose number shall equal twice the number .of the frames less one.

4. In a dust proof filing device, the combination of a plurality of superimposed frames,

end pieces on some of said frames, a single l15y continuous fabric interlacing through successive frames' and embracing both sides of each frame, rods projecting from some of said frames to engage notches in adjacent end pieces, and means for selectively raising 20 

